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Sep19-07, 07:03 PM
Sci Advisor
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P: 7,178
Quote Quote by mhl View Post
Still, does that mean that a given cylinder, for example OD of 1m, lying on a straight plane has the same contact area to it's underlayer (tha plane) as the same cylinder lying inside a cylinder with ID of 1.001m???
Yes, if you assume both cylinders are perfectly rigid.

For real cylinders the answer is no, because they are flexible. Google for "Hertz contact" for more about that.